Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. [ 34.480619] random: sshd: uninitialized urandom read (32 bytes read) [ 34.583746] audit: type=1400 audit(1565945490.030:7): avc: denied { map } for pid=1790 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/08/16 08:51:31 parsed 1 programs [ 35.651276] audit: type=1400 audit(1565945491.100:8): avc: denied { map } for pid=1790 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=5035 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 36.264156] random: cc1: uninitialized urandom read (8 bytes read) 2019/08/16 08:51:33 executed programs: 0 [ 37.663091] audit: type=1400 audit(1565945493.110:9): avc: denied { map } for pid=1790 comm="syz-execprog" path="/root/syzkaller-shm955498531" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 39.970176] ------------[ cut here ]------------ [ 39.975595] kernel BUG at ./include/linux/skbuff.h:1406! [ 39.981117] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 39.986997] Modules linked in: [ 39.990306] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.138+ #32 [ 39.997036] task: (ptrval) task.stack: (ptrval) [ 40.003274] RIP: 0010:tcp_fragment+0x12c6/0x13e0 [ 40.008125] RSP: 0018:ffff8881dbb07bf8 EFLAGS: 00010206 [ 40.013473] RAX: ffff8881daa72f00 RBX: ffff8881d3918a80 RCX: 1ffff1103a723199 [ 40.020734] RDX: 0000000000000100 RSI: ffff8881cfc69180 RDI: ffff8881cfc69188 [ 40.028022] RBP: ffff8881cfc69180 R08: 0000000001080020 R09: ffff88821ffff048 [ 40.035280] R10: ffff88821ffff057 R11: ffff88821ffff050 R12: 0000000000000000 [ 40.042537] R13: 0000000000006800 R14: 0000000001080020 R15: ffff8881d3918cd0 [ 40.049905] FS: 0000000000000000(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 [ 40.058216] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.064178] CR2: 000000000075c000 CR3: 000000015da26002 CR4: 00000000001606a0 [ 40.071441] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.078704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.085972] Call Trace: [ 40.088623] [ 40.090950] tcp_write_wakeup+0x32b/0x570 [ 40.095081] ? tcp_write_timer_handler+0x780/0x780 [ 40.099997] ? tcp_write_timer_handler+0x780/0x780 [ 40.105045] tcp_send_probe0+0x46/0x3cc [ 40.109202] ? tcp_write_timer_handler+0x780/0x780 [ 40.114169] tcp_write_timer_handler+0x687/0x780 [ 40.118917] tcp_write_timer+0xc9/0x170 [ 40.122883] call_timer_fn+0x15b/0x6a0 [ 40.126754] ? collect_expired_timers+0x280/0x280 [ 40.131680] ? check_preemption_disabled+0x35/0x1f0 [ 40.136680] ? _raw_spin_unlock_irq+0x24/0x50 [ 40.141180] ? tcp_write_timer_handler+0x780/0x780 [ 40.146187] expire_timers+0x227/0x4c0 [ 40.150069] run_timer_softirq+0x1eb/0x5d0 [ 40.154313] ? expire_timers+0x4c0/0x4c0 [ 40.158359] ? check_preemption_disabled+0x35/0x1f0 [ 40.163358] ? check_preemption_disabled+0x35/0x1f0 [ 40.168363] __do_softirq+0x234/0x9ec [ 40.172155] ? check_preemption_disabled+0x35/0x1f0 [ 40.177218] irq_exit+0x114/0x150 [ 40.180732] smp_apic_timer_interrupt+0x1a7/0x650 [ 40.185569] apic_timer_interrupt+0x8c/0xa0 [ 40.189888] [ 40.192112] RIP: 0010:native_safe_halt+0x13/0x20 [ 40.196980] RSP: 0018:ffff8881daa8fd60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [ 40.204682] RAX: 0000000000000000 RBX: ffffffffbac2dcc8 RCX: 0000000000000000 [ 40.212114] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8881daa7372c [ 40.219727] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 40.227040] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 40.234299] R13: 0000000000000000 R14: ffff8881daa72f00 R15: dffffc0000000000 [ 40.241572] default_idle+0x61/0x3b0 [ 40.245279] do_idle+0x2e6/0x390 [ 40.248639] ? arch_cpu_idle_exit+0x40/0x40 [ 40.253043] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 40.258149] ? trace_hardirqs_on_caller+0x37b/0x540 [ 40.263163] cpu_startup_entry+0xc6/0xd0 [ 40.267218] ? cpu_in_idle+0x20/0x20 [ 40.271021] ? trace_hardirqs_on_caller+0x37b/0x540 [ 40.276128] start_secondary+0x3a8/0x4b0 [ 40.280180] ? set_cpu_sibling_map+0x1110/0x1110 [ 40.285025] secondary_startup_64+0xa5/0xb0 [ 40.289332] Code: ea 03 80 3c 02 00 0f 85 2c 01 00 00 4c 8b bb 58 02 00 00 ba 00 00 00 00 4c 3b 7c 24 18 4c 0f 44 fa e9 bd fc ff ff e8 2a fb da fe <0f> 0b e8 03 be fd fe e9 4d ef ff ff e8 f9 bd fd fe e9 2d f2 ff [ 40.308744] RIP: tcp_fragment+0x12c6/0x13e0 RSP: ffff8881dbb07bf8 [ 40.314993] ---[ end trace 2a517d16f19fec03 ]--- [ 40.319948] Kernel panic - not syncing: Fatal exception in interrupt [ 40.327045] Kernel Offset: 0x37400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 40.338055] Rebooting in 86400 seconds..